apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    buildToolsVersion '27.0.3'
    defaultConfig {
        (...)
    }

    signingConfigs {
        release {
            storeFile file('keystore.jks')
            keyAlias 'platform'
            storePassword 'testpass'
            keyPassword 'testpass'
        }
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

            signingConfig signingConfigs.release
        }
    }

}

dependencies {
    (...)
}